Describe the process and effects of acclimatization to high altitude

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The lung at high altitude

describe the process and effects of acclimatization to high altitude

Define the terms hyperpnea and hyperventilation; Describe the effect of exercise . Acclimatization is the process of adjustment that the respiratory system makes The low partial pressure of oxygen at high altitudes results in a lower oxygen.

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Traveling at high altitude can be hazardous. The information provided here is designed for educational use only and is not a substitute for specific training or experience. Princeton University and the author assume no liability for any individual's use of or reliance upon any material contained or referenced herein. This paper is prepared to provide basic information about altitude illnesses for the lay person. Medical research on high altitude illnesses is always expanding our knowledge of the causes and treatment.

The lung is the interface between the environment and the metabolic mechanisms of the body, and plays a pivotal role in exposure to high altitude. In fact, high altitude is a challenge for the human body due to the progressive reduction of barometric pressure and subsequent reduction of oxygen pressure, leading to a series of important physiologic responses that enable individuals to tolerate hypoxia and secure the oxygen supply to tissues. These compensatory responses are known as the acclimatization process. Most of the adaptations are observed from m a. A new classification of altitude levels based on the effects on performance and well-being has been recently proposed [ 1 ]: the decrease in partial pressure of oxygen reduces maximal oxygen uptake and impairs "aerobic" performance by reducing maximal aerobic power. Submaximal exercise performance is also impaired at altitude.

During exercise, the human body needs a greater amount of oxygen to meet the increased metabolic demands of the muscle tissues. Various short-term respiratory changes must occur in order for those metabolic demands to be reached. Eventually exercise can induce long term cardiovascular and respiratory changes, which can be both healthy and unhealthy. During exercise, carbon dioxide levels the metabolic waste rise in arterial blood. Carbon dioxide induces vasodilation in the arteries while the heart rate increases, which leads to better blood flow and tissue perfusion, and better oxygen delivery to the tissues. In particular, the blood flow to the brain and heart is increased, while increased blood flow to the muscles makes exercise easier.

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